James r



(No Modell) J. R. ELDRIDGE.

WHISTLE.

Patented July 1'6 A TT OIM/E Y UNITED STATES PATENT OFFICE.

JAMES R. ELDRIDGE, OF YARMOUTII, NOVA SCOTIA, CANADA, ASSIGNOR TO I'IIMSELF AND REUBEN MCKINNON, OF SAME PLACE.

WHISTLE.

SPECIFICATION forming part of Letters Patent No. 407,067, dated July 16, 1889.

Application filed February 25, 1889. Serial No. 301,030. (No model.)

To all whom, t may concern.: trated at I7 in the same figure. The deflector Be it known that I, JAMES R. ELDRIDGE, of is preferably circular in horizontal section, Yarmouth, in the Province of Nova Scotia and the upper surface IS is ordinarily conand Dominion of Canada, have invented a vexed to dispose more readily of any water new and useful Improvement in Whistles, of or snow falling thereon. 55

which the following'is a full,clear, and exact The detlector is provided with a vertical description. threaded bore ext-ending through the stem My invention relates especially to an imand a threaded aperture in the top aligning provement in steam-whistles, and has for its the said bore in the stem. ro object to provide a sound-delector therefor, In connecting the deliector with the whistle 6o whereby the sound-waves will be deflected a rod IS) is usually employed, one end of horizontally over a large area of surface; and which rod is screwed or otherwise secured in afurther object of theinvention is to provide the center of the upper surface of the steama deiiector capable of the above function, of chamber 10. From thence the rodis projected simple construction, and which maybe eXpevertically upward through the bell and be- 65 ditiously attached to or detached from any yond the same, the outer extremity of the rod form of whistle. being threaded. The delector is secured The invention consists in the combination, upon the said rod and the stem is held eswith stea1n-whistles, of a sound-deiiector supsentially in contact with the upper surface of 2o ported upon the same, and in the novel conthe bell by a lock-nut 20, screwed upon the 7o struction of the said defiector, as will be hererod 19 to a contact with the upper surface of inafter more fully set forth, and pointed out the deflector. in the claims. I desire it to be understood that I do not Reference is to be had to the accompanying confine myself to the means illustrated for drawings, forming a part of this specification, attaching the deiiector to the whistle, or to 75 in which similar figures of reference indicate the general contour of the deilector, or to the corresponding parts in all the views. y form of the upper surface, as the said de- Figurel isacentral vertical section through Hector may consist of a disk having a curved the deflector and a portion of the whistle, and under surface. 3o Fig. 2 is a plan view of Fig. I. I'Iavingthus described myinventiongIclaiin 8o In illustrating the application of my device as newand desire to secure by Letters Patent- I have shown one form of whistle comprising I. The combination, with a steam-whistle, a steam-chamber l0, having' a close top and of asound-deiiector supported above the same, two straight orifices Il in the said top for the having a curved under surface, substantially escape of steam, said orifices being parallel, as shown and described. 85 and a bell provided with two straight paral- 2. The combination, with a whistle, of a lel side slots I3 to receive the steam as it issound-defiectorsupported above the same, prosues from the orifices Il and gives the sound; vided with a central stem upon the under but I desire it to be distinctly understood that surface, the exterior of which stem is con- 40 any other form of whistle may be employed. caved, substantially as show n and described. 9o

The sound-deflector Il consists of a cast- 3. The combination, with a steam-whistle, ing, either solid or hollow, the under surface of a sound-detiector supported above the same, whereof is curved. In constructing the soundprovided with a central stem upon the under deiiector a stem I5 is preferably projected surface, and having 'the under face upwardly downward from the center of the under face, and outwardly curved from the base of the 95 and the under surface is curved upward from stem, which curve is merged into an essenthe base of the said stem, as illustrated at 16 tially horizontal line near the periphery of in Fig. 1, and as the said curve approaches the deectonsubstantially as and for the purthe periphery of the deflector it is merged pose specified. 5o into an essentially horizontal line, as illus- 4. The combination, with a steam-whistle, roo

ofasound-deeetorsupported abovethesame, the said deectol, as and for the purposeprovided with a'stem upo'n the under face, specified. and having the under surface curved from the base of the stem essentially to the pe- 5 riphery of the deflector, and provided with a Vtnesses:

convex outer surface, and means, substan- E. I-I. CLEMENT, tially as shown and described, for supporting REUBEN MCKINNON.

JAMES R. ELDRI'DGE. 

